Ratio defines the ratio, which is the value obtained by comparing two numbers. The division of two similar quantities A and B can also be called ratio. Divider a is the divisor b of the previous term and the latter term of the ratio. The symbol of division is equivalent to the quotient ratio of comparison symbol and division. To compare two nonzero numbers, it can be expressed as a fraction. The denominator is the term after the ratio, and the former is the numerator. Divided by the quotient component value, the fractional value is also a ratio. Find the ratio of two quantities of the same kind, and don't forget to unify the units. Ratio It is a number, and the result cannot be a point ratio.
The meaning of ratio in mathematics is that ratio is equivalent to division, and "X" is divided by "X". For example, 2: 5 is equivalent to 2 divided by 5=0.4, and the ratio is equivalent to 2/5 (2/5), which is division arithmetic. Fraction can actually be understood as a division formula, but it is expressed in the form of fraction.
What is a percentage? Percentage is a special fraction, its denominator is 100, and its numerator is not an integer. Percent means that one number is a percentage of another number, which means that the ratio has no unit name. Percentage is also a way to express the value of proportion, ratio or fraction, such as 82% for 82%, or 82/ 100, 0.82. Sum and discount represent a few tenths, such as "70%" and "30%", which represent 70/ 100 or 70% or 0.7 respectively. Therefore, the percentage cannot be followed by the unit.